The shark nebula

There is no sea big enough to accommodate this harmless predator, made up of interstellar gas and dust.
The grains of this dust have about the consistency of cigarette smoke and were generated in the relatively cool atmospheres of giant stars.
After being expelled with the gas and gravitationally recondensed, the massive stars carve intricate structures in these dust clouds using their intense radiation and powerful winds as chisels. The heat they generate evaporates the cloudy molecular cloud and disperses the surrounding hydrogen while ionizing it. It is during this phase of disintegration that we humans can see familiar figures in the shapes of these great cosmic clouds, as we do with the clouds in our atmosphere. Comprising smaller dark nebulae like Lynds 1235 and Van den Bergh 149 & 150, the Shark Nebula spans about 15 light-years and lies about 650 light-years away in the constellation King of Ethiopia, Cepheus.

When the light (emitted or reflected) of this nebula “left” to hit my photographic sensor, the provost of Paris, Aubriot,
lays the first stone of the Bastille.

🔭: ASA Newton 254/950 F3.6
⚙️: Paramount MyT
📷: ZWO ASI2400MC à -10°C + rotateur Artesky
🕶: IDAS LPS-P3
🎯: Skywatcher Evostar72ED + ASI290MM mini
💻: TheSkyX pro, NINA, PHD2, AstroPixel Processor, PixInsight, Photoshop
⏱: 28h20′ (170 x 600”)
🌍: Lorraine, France
📆: Over 3 nights : 28 February 2022 and 3, 4 March 2022
📌: https://www.astrobin.com/full/ys59c4/0/
®️ www.astrophotographie-lorraine.com

Autore: LELU (sito)